Oven door



Sept Z0 1927' M. A. PossoNs OVEN DOOR Filed April 12, 1926 4 Sheets-Sheet l gmx/nto@ LL .Ma-lawn,

' 1,643 288 sept. 20.1927. M. A POSSONS OVEN DOOR Filed April l2, 1926 4 Sheets-Sheet 2 Sme/nbc Sept' zo 1927 M. A. PossoNs ovzN noch Filed April 12. 1926 4 Sheets-Sheet 3 Sept 20' 1927 M. A. PossoNS ovzn Doon Filed April 12.' 1926 4 Sheets-Sheet 4 l' Patented Sept. 20, 1927.

UNlTED STATES PATENT orFlcE..

MINARI) A. POSSONS, OF CLEVELAND, OHIO, ASSIGNOR-TO AMERICAN STOVE COM- PANY, F ST. LOUIS, MISSOURI, A CORPORATION 0F NEW JERSEY.

OVEN DOOR.

Application led April 12, 1926. Serial No. 101,585.

This invention relates to improvements in oven doors and has in view the, general idea of a spring closed door of special construction which will be specified hereinafter.

The primary object of this invention is to make a hingeless spring closed door.

Another object of the invention is to so construct the spring and other parts that when the door is opened to a horizontal position it will remain in that position but when lifted it will snap closed with considerable force, thus making a tight closure.

Another object of the invention is to so construct a brace that is attached to the door and to which the spring is connected that it acts as a positive stop to hold the door in a horizontal position and to isustain that position for supporting articles placed thereon.

Another object of the present invention is to provide a spring so constructed that it rests in a vertical plane in the oven between the lining and the wall of the oven, whereby the lining does not interfere or strike the said spring.

A further object of the present invention is to locate the brace for the spring between the lining andthe door whereby the brace acts as a stiening device for the door and to hold it against being twisted out of shape.

Additional objects of the invention will appear from the following description:

Figure 1 is a vertical central sectional view through the front part of an oven showing my improved door applied thereto.

Figure 2 is an inside plan view of an oven door yshowing my improved spring brace applied thereto.

Figure 3 is a sectional view on the line 3-3 of Figure 2 showing part of the attachment of the brace to the lining of the door.

Figure 4 is a sectional View of Figure 2 on the line 4 4, showing the means for attaching the lining, the brace and the handle to the door.

Figure 5 is a detached perspective view of 'one of my improved brace bars.

Figure 6 is a perspective view looking at it from the opposite side from that shown in Figure 5.

Figure 7 is a detached perspective view of my improved spring.

Figure 8 is a detail view of the loop at the inner side of the oven that receives one end of the spring.

Figure 9 is a sectional view showing the 55 door in its horizontal position.

Figure 10 is a detached perspective view of dthe lower ends of the spring and the brace ro Figure 11 is a front view of the lower end of the door opening of the oven.

Figure l2 is a horizontal sectional view showing an oven wall, a lining therefor and the spring and door arm located between the lining and the oven wall.

Figure 13 is a vertical central erspective view taken through the lower edge of the door structure. i

The present invention isa'dapted to be applied to ovens having various constructions, and to doors that are differently constructed. For the purpose of illustrating the present improvement, I have shown the door ap lied to a conventional oven structure and ave also shown the door of a conventional construction. These features, however, may be varied without departing from the spirit and scope of the present invention.

Figure 1 is a vertical section showing the front wall 1 of an oven to which the door 2 is applied.

In the form of oven door here shown, it comprises an outer panel 3 that has its edge 4 turned inward, and a door lining 5 with its upper edge 6 located withinand telescoping the ange 4 of the outer panel 2. Applied to the door and as here shown located between the lining and the outer p anel, is a brace bar'. This brace bar comprlses a vertical leg portion 8 and an upwardly inclmed leg portion 9. The lower end of this brace has an inwardly extending curved arm 10, which is arranged to extend at ri ht anales to the remaining portion of the race `Ear. This curved portion 10 passes loosely through an opening 11, the said opemng being considerably larger than the arm 10.

Thus far the door is an element that is entirely separate and disconnected in any manner from the oven 1. It may be removed from the oven since it is wholly disconnected therefrom. p

When the door is to be connected with the oven, the curved arm 10 is passed. through the opening 11, and to the extremlty 12 of the arm is attached aspring 13. The upper end 14 of the springpasses through a suitable loop 15 that is attached to the inner slde of the outer wall 16 et the door opening. This loop 4may be welded or otherwise at tached to the wall.

The spring consists 'of a heavyT wire that is made of spring material. 4Intermediate its ends the spring is formed into a circle or loop 17, its upper arm 18 projecting forward and having its end 14 passing through the loop 15 as aboveu stated. The opposite and lower arm -V 19 of the spring has its kenol 20 turned laterally preferably outwardly, whereby the spring lies between the extremity of the arm 10 and the wall 21 of the oven. The end 14 is laterally bent upward and passes through the loop 15 wlnle the end 20 is bent horizontally and passes through the opening 22. lFrom the foregoing it will be observed .that my spring comprises essentially the two described arm portions and a circle or loop 17. This spring is arranged so that the arms 18 and 19 normally separate,

that is to say the arm 18 normally moves upward and the arm 19 normally moves downward. This action places a pull on the curved armi 10 that acts to close the door 2.

Attention is directed to the fact that the y lower end 23 of the door as here shown, is

l made on a circle that has its axis' substantially on that part of the lower edge ot the door that engages the parts 24 and 25 of the stove structure.

From the foregoing it will be observed that the door is not provided with a hinge of any kind asis ordinarily the case and the arm 10 normally travels freely throu h the opening 11. The spring acts to hod the lower end of the1 door when in a vertical position in engagement with the part 24 and when it is being opened, the lower end is held in the anglebetween the part 24 and 26. Preferably these engaging parts are only 'at the ends ofthe door, whereby the construetion is practically unnoticeable.

The spring, therefore, acts to hold the door firmly in its proper position, whether it is closed,`and in its various positions in being opened, and in its horizontal position. The arms 19 and 18 serve to exert a downward pull on the extremity of the arm 10 and the end 14 being held against endwise movement by the loop 15, the door is held against any outward movement. In fact in an actual construction such as that herein shown and described, the door being partiall open, it

is difficult to lift it from its position on the oven frame. When the door is in a horizontal position, then the extremity of the arm 10 lies substantially closed to a pull that is substantially in aline with the turning 'fiil- Crum or part of the door and hence when the doorl is horizontal, it remains in that incassa position, but when it is lifted a short distance and released, it will snap closed very a considerable distance and is attached to the lining by a screw 27 that passes in an opening 28 in the lining and into a suitable screw nut 29 that is at the outer' side of the secured to the lining 5 by means of a screw that passes through an opening 30 in the lining and held in the same manner as the screw 27. Thev extremity of the leg 9 of the brace 7 is held by the saine screw 32 that serves to unite the handle 33.to the door 2.

The screw passes through an opening in the lining, through an opening 34 formed in the extremity of the le 9 and into a screw threaded opening 35 $0 tion' of the handle 33.

Attention is directed to the fact that the ed rmed in the stein porinner and lower end25 of the door is turned disconnect the outer door panel2 :from the lining 5 and the brace rod, it is only neces-- sary to loosen the screws 34- when the outer doorv panel can be removed for anyl purpose whatever, such for instance, as enameling or otherwise. This construction also enables the lining 5 to have the brace rods 7 attached thereto and afterwards the door attached to the lining before or `atter the 'lining is attached to the oven.

'll-he brace rods 7 are made right and left, owing to the fact that the leg 9 extends inward and the arm 10 extends at right angles to the vertical leg 8.

For the purpose of holding the end 20 of the arm 19, of the spring 13 from being accidentally removed from its opening 22, its

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end 20 is slightly curved down whereby its construction herein shown and described may 'he made without departing from thescope iai 80 brace. The lower end 30 of the brace is also n having one end xed to the said door and its opposite end attached to the door and spirit of the present invention so long as any changes are fairly within the scope of the appended claims.

Having thus described my invention, what I desire to claim and secure by Letters Patent is :v

1. The combination of a door frame having a door seat with an open outer end at one side thereof, a door normally resting loosely on said seat and an elongated substantially U-shaped normally expanding spring having one end supported independently of said door and its opposite end attached to the door near its seat said spring ,pulling inward and pressing own on the said door, whereby it acts as described.

2. The combination of a door frame having at its bottom awdoor seat with an o en outer end located at its outer side, a dpoor having its lower edge normally resting loosely on the said seat, and a horizontall elongated substantially U-shaped norma lyl expending spring extending inward the upper end of the spring connected with the said door frame'and its lower end attached to the door near its side, said spring acting to pull inward and downward whereby the door 1s firmly held on its seat in its various ,positions.

3. The combination of a door frame having a door opening with an external door seat with an open outer en d at its lower portion, a door normallyl resting loosely on said seat, and a horizontally elongated substantially U-shaped normally expanding spring rame near said seat, the said spring pnllin ward and downward on the door where lis firmly held to the seat as it is move to its various positions. 4. The combination of a door frame having a door opening, the lower wall of the sald opening having a door seat with an open outer end, a door normally restin loosely on said seat, and two essentially LE shaped normally ex Aending springs llocated at opposite sides o ythe said opening, said s rings extending inward, the u per ends of t e said springs fixed to the said frame and the lower ends of the said springs attached to the door near the said seat, the springs pulling inward .and pressing downward on the sald door whereby the door is firmly held to its seat as it is moved from closed to open positions. l

5. An oven comprising side walls and inner linings spaced from the side walls the front of the oven having a frame provided with a door opening, the lower wall of the said opening having a door seat with an open outer end a door normally resting loosely in the said seat, essentially a U- shap'ed norslling located in the said mally expandin I space between t e ng and the wall of'ithe oven, the U-sha ed expandin spring elonated horizonta fy and extemng vertically, t e upper end o the U extending outward and attached to the said frame, the opposite end of the U connected with the door adjacent its said seat, the spring acting to constantl pull inward and press downward on the said door whereby the door is constantly held to the as 1t is moved to open or closed ositions.

6. T e combination of a door frame having at its lower portion a door seat with an open outer end externally arran ed, a door normally resting loosely 1n the sald seat, the door having an inwardly extending arm at its lower part, said arm passing wholly freely inward, and an inwardly elongated essentially U-shaped normally expanding spring located in a vertical position, the upper end of the sprin fixed to the said frame and the lower en of the spring attached to the inner end of said arm, the spring Aacting to constantly ull inward and press downward on the said arm, whereby the door is constantly held firmly to its seat as it is moved from open to closed positions.

7. An oven construction `comprising a front Wall having a door opening with a door seat with an open outer end located at its lower portion, a door normally resting loosely in the said seat, a brace rod extendin upward substantially throughout the height of the said door, said brace rod having an arm extending inward at right angles to the said bar, a horizontally elongated essentially U-shaped normally expandin spring located inside the walls of the sai oven, said spring arranged substantially in a vertical ositlon, the upper end of the spring fixed) to the said door frame and its lower end attached to the inner end of the said arm, whereby the door is braced and held constantl to its seat as it is moved to open or close positions.

8.` An oven having a front wall provided with a door opening, the lower end of the opening having substantially an L-shaped door seat, a door having one edee restinff in the said seat and also having substantially a right angle portion engaglng the said L- shaped ortion, and an expandin spring within t e walls of the oven, sai sprin being essentially U-shaped, the upper end o the spring attached to the door frame and its lower end attached to the door near its angularl end, the spring acting to constantly exert a downward and inward pull on the said door, whereb when opening the door said angular portlons act to hold the door signature.

MINARD A. POSSON S. 

